1/*-
2 * Copyright (c) 1994, 1995 Scott Bartram
3 * Copyright (c) 1994 Arne H Juul
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. The name of the author may not be used to endorse or promote products
12 * derived from this software without specific prior written permission
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
27__FBSDID("$FreeBSD: head/sys/i386/ibcs2/ibcs2_socksys.c 164033 2006-11-06 13:42:10Z rwatson $");
28
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/sysproto.h>
32#include <sys/jail.h>
33#include <sys/kernel.h>
34#include <sys/sysctl.h>
35
36#include <i386/ibcs2/ibcs2_socksys.h>
37#include <i386/ibcs2/ibcs2_util.h>
38
39/* Local structures */
40struct getipdomainname_args {
41 char *ipdomainname;
42 int len;
43};
44
45struct setipdomainname_args {
46 char *ipdomainname;
47 int len;
48};
49
50/* Local prototypes */
51static int ibcs2_getipdomainname(struct thread *,
52 struct getipdomainname_args *);
53static int ibcs2_setipdomainname(struct thread *,
54 struct setipdomainname_args *);
55
56/*
57 * iBCS2 socksys calls.
58 */
59
60int
61ibcs2_socksys(td, uap)
62 register struct thread *td;
63 register struct ibcs2_socksys_args *uap;
64{
65 int error;
66 int realargs[7]; /* 1 for command, 6 for recvfrom */
67 void *passargs;
68
69 /*
70 * SOCKET should only be legal on /dev/socksys.
71 * GETIPDOMAINNAME should only be legal on /dev/socksys ?
72 * The others are (and should be) only legal on sockets.
73 */
74
75 if ((error = copyin(uap->argsp, (caddr_t)realargs, sizeof(realargs))) != 0)
76 return error;
77 DPRINTF(("ibcs2_socksys: %08x %08x %08x %08x %08x %08x %08x\n",
78 realargs[0], realargs[1], realargs[2], realargs[3],
79 realargs[4], realargs[5], realargs[6]));
80
81 passargs = (void *)(realargs + 1);
82 switch (realargs[0]) {
83 case SOCKSYS_ACCEPT:
84 return accept(td, passargs);
85 case SOCKSYS_BIND:
86 return bind(td, passargs);
87 case SOCKSYS_CONNECT:
88 return connect(td, passargs);
89 case SOCKSYS_GETPEERNAME:
90 return getpeername(td, passargs);
91 case SOCKSYS_GETSOCKNAME:
92 return getsockname(td, passargs);
93 case SOCKSYS_GETSOCKOPT:
94 return getsockopt(td, passargs);
95 case SOCKSYS_LISTEN:
96 return listen(td, passargs);
97 case SOCKSYS_RECV:
98 realargs[5] = realargs[6] = 0;
99 /* FALLTHROUGH */
100 case SOCKSYS_RECVFROM:
101 return recvfrom(td, passargs);
102 case SOCKSYS_SEND:
103 realargs[5] = realargs[6] = 0;
104 /* FALLTHROUGH */
105 case SOCKSYS_SENDTO:
106 return sendto(td, passargs);
107 case SOCKSYS_SETSOCKOPT:
108 return setsockopt(td, passargs);
109 case SOCKSYS_SHUTDOWN:
110 return shutdown(td, passargs);
111 case SOCKSYS_SOCKET:
112 return socket(td, passargs);
113 case SOCKSYS_SELECT:
114 return select(td, passargs);
115 case SOCKSYS_GETIPDOMAIN:
116 return ibcs2_getipdomainname(td, passargs);
117 case SOCKSYS_SETIPDOMAIN:
118 return ibcs2_setipdomainname(td, passargs);
119 case SOCKSYS_ADJTIME:
120 return adjtime(td, passargs);
121 case SOCKSYS_SETREUID:
122 return setreuid(td, passargs);
123 case SOCKSYS_SETREGID:
124 return setregid(td, passargs);
125 case SOCKSYS_GETTIME:
126 return gettimeofday(td, passargs);
127 case SOCKSYS_SETTIME:
128 return settimeofday(td, passargs);
129 case SOCKSYS_GETITIMER:
130 return getitimer(td, passargs);
131 case SOCKSYS_SETITIMER:
132 return setitimer(td, passargs);
133
134 default:
135 printf("socksys unknown %08x %08x %08x %08x %08x %08x %08x\n",
136 realargs[0], realargs[1], realargs[2], realargs[3],
137 realargs[4], realargs[5], realargs[6]);
138 return EINVAL;
139 }
140 /* NOTREACHED */
141}
142
143/* ARGSUSED */
144static int
145ibcs2_getipdomainname(td, uap)
146 struct thread *td;
147 struct getipdomainname_args *uap;
148{
149 char hname[MAXHOSTNAMELEN], *dptr;
150 int len;
151
152 /* Get the domain name */
153 getcredhostname(td->td_ucred, hname, sizeof(hname));
154
155 dptr = index(hname, '.');
156 if ( dptr )
157 dptr++;
158 else
159 /* Make it effectively an empty string */
160 dptr = hname + strlen(hname);
161
162 len = strlen(dptr) + 1;
163 if ((u_int)uap->len > len + 1)
164 uap->len = len + 1;
165 return (copyout((caddr_t)dptr, (caddr_t)uap->ipdomainname, uap->len));
166}
167
168/* ARGSUSED */
169static int
170ibcs2_setipdomainname(td, uap)
171 struct thread *td;
172 struct setipdomainname_args *uap;
173{
174 char hname[MAXHOSTNAMELEN], *ptr;
175 int error, sctl[2], hlen;
176
177 /* W/out a hostname a domain-name is nonsense */
178 if ( strlen(hostname) == 0 )
179 return EINVAL;
180
181 /* Get the host's unqualified name (strip off the domain) */
182 snprintf(hname, sizeof(hname), "%s", hostname);
183 ptr = index(hname, '.');
184 if ( ptr != NULL ) {
185 ptr++;
186 *ptr = '\0';
187 } else {
188 if (strlcat(hname, ".", sizeof(hname)) >= sizeof(hname))
189 return (EINVAL);
190 }
191
192 /* Set ptr to the end of the string so we can append to it */
193 hlen = strlen(hname);
194 ptr = hname + hlen;
195 if ((u_int)uap->len > (sizeof (hname) - hlen - 1))
196 return EINVAL;
197
198 /* Append the ipdomain to the end */
199 error = copyinstr((caddr_t)uap->ipdomainname, ptr, uap->len, NULL);
200 if (error)
201 return (error);
202
203 /* 'sethostname' with the new information */
204 sctl[0] = CTL_KERN;
205 sctl[1] = KERN_HOSTNAME;
206 hlen = strlen(hname) + 1;
207 return (kernel_sysctl(td, sctl, 2, 0, 0, hname, hlen, 0, 0));
208}